Chestnut Woodpecker
Celeus elegans
A “classic” Celeus woodpecker, medium-sized and rufous overall with a shaggy crest. Unlike the similar Scale-breasted and Waved Woodpeckers, Chestnut Woodpecker mostly or entirely lacks black markings on the body and wings. Sexes are similar, but males have a red mustache. The color of the crest varies across subspecies: some birds have a contrasting golden crest, while others have a plain rufous crest like the rest of the body. Widespread but uncommon across much of northern South America, where it inhabits the mid-levels of lowland forests and edges, especially around water.
识别特征
The chestnut woodpecker is about 26 to 32 cm (10 to 13 in) long. Subspecies C. e. hellmayri weighs 138 to 168 g (4.9 to 5.9 oz), C. e. leotaudi weighs 93 to 139 g (3.3 to 4.9 oz), and C. e. jumanus weighs 112 to 146 g (4.0 to 5.1 oz). Males of all subspecies have a wide bright red malar area and cheek; females have no red. In the nominate subspecies C. e. elegans adults of both sexes have a buffish cream forehead, crown, and crest. The rest of their head including the chin and throat are deep chestnut brown. They have deep rufous-chestnut upperparts with a cream-buff rump and uppertail coverts, and sometimes faint black bars on the back. Their flight feathers are blackish brown with rufous bars at their base. Their wing coverts have small white spots. Their tail feathers are blackish with some rufous on the outermost pair. Their underparts are dark chestnut brown; sometimes the belly and vent are lighter. Their flanks are a paler creamy cinnamon-buff and often have obscure darker bars. The adult's bill is ivory to yellow or greenish yellow, their iris red-brown to red, and their legs olive to dark gray. Juveniles are similar to adults but havea dull blackish face and darker mottling on their underparts.<p>Subspecies C. e. hellmayri is somewhat darker than the nominate overall and especially on the crown; its wing coverts have more spots and the flight feathers more bars. C. e. deltanus is even darker on its crown than hellmayri. Subspecies C. e. leotaudi is paler and brighter than the nominate and has a tawny crown and a yellower rump. C. e. jumanus is darker overall than the nominate and the three above subspecies. Its crest is shorter, its back feathers have rufous tips, its wing coverts no spots, and its flight feathers are more rufous. C. e. citreopygius, like jumanus, has a short crest, but is blacker overall with less rufous.
分类信息
The chestnut woodpecker has these six subspecies:<p>Some studies have found that subspecies citreopygius and jumanus are more closely related to the blond-crested woodpecker (C. flavescens) than to the other chestnut woodpecker subspecies. They have at times been treated as one or two separate species, and their exact placement is not fully resolved. Several more subspecies have been proposed as divisions of the six, but all have been determined to be either indistinguishable from one of the six, an aberrant form of one of them, or a hybrid.
- 学名
- Celeus elegans
- 命名信息
- (Müller, PLS, 1776)
- 目
- Piciformes
- 科
- Picidae
- 属
- Celeus
分布与栖息地
The subspecies of the chestnut woodpecker are found thus:<p>The chestnut woodpecker inhabits the interior and edges of both dense and lighter forests. These include terra firme, gallery, and várzea forests. It also occurs in secondary forest and cocoa and other plantations. In elevation it ranges from sea level to 1,000 m (3,300 ft) in Venezuela, to 500 m (1,600 ft) in Colombia, to 1,100 m (3,600 ft) in Peru, and to 700 m (2,300 ft) in Ecuador (though usually below 500 m (1,600 ft) there).
- 迁徙
- Resident species
行为
The chestnut woodpecker is a year-round resident throughout its range.<p>The chestnut woodpecker's primary food is ants and termites; fly larvae and fruit are also significant parts of its diet. It forages singly, in pairs, or in small loose groups, and frequently joins mixed species feeding flocks. It mostly forages from the understorey to the sub-canopy, and usually on trunks and large limbs. It captures prey by gleaning from trees and by breaking open arboreal termitaria.<p>The chestnut woodpecker breeds in April and May on Trinidad and in French Guiana; its breeding season in Venezuela and northwestern Brazil includes at least January and February. It excavates a nest cavity in a dead tree or stub. The clutch size is three eggs. The incubation period, time to fledging, and details of parental care are not known.<p>The chestnut woodpecker's territorial call is a "[d]escending 'wewa ew-ew-ew-ew-ew-ew' or sarcastic-sounding 'har-hahaha'". It also makes "rattling screeches, e.g. 'whick-frrr' or grating 'wháa-jer'", a "wick-wick-wick-wick-wick", a "mellow 'gwarrr'", and a "nasal 'kyeenh'". Its drum is a double rap "dop-dop", given by both sexes "frequently and loudly in breeding season".
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Painted Firetail
Emblema pictum
Tiny bird, more slender than other waxbills, olive brown above, blackish with white-spotted flanks below. Male with bright red face, female with red around eye. Cherry red rump obvious in flight. Found in arid inland Australia, in rocky gorges and hills with water nearby.
Straight-billed Woodcreeper
Dendroplex picus
Widespread and fairly common in northern South America. This medium-sized woodcreeper is found in open wooded habitats, scrub, and riparian forest. The well-named woodcreeper has a very straight bill that can even look slightly upturned unlike most other woodcreepers. Also note the bill’s pale color. Otherwise, mostly dark brown with fine streaking on the head and breast, but note the unstreaked back. Very similar to Zimmer’s Woodcreeper, but listen for Straight-billed’s slightly slower song that typically goes up in pitch at the end. Striped Woodcreeper has more streaking on the back and a slightly decurved bill. Usually seen singly or in pairs working up tree trunks and branches, usually at lower to middle levels in forest. Sometimes follows mixed-species flocks.
Woodhouse's Scrub-Jay
Aphelocoma woodhouseii
Attractive jay of oak woodlands and piñon-juniper forests. Royal blue above with gray-brown back and dirty grayish underparts. Flight style is often distinctive, a series of quick wingbeats followed by a stiff glide. Typically in small groups. Listen for scratchy, nasal calls. Regularly visits backyards and feeders. Most similar to California Scrub-Jay (and once considered the same species), but usually separable by range. Also note Woodhouse’s Scrub-Jay is paler and more washed-out, with only a diffuse blue breast band. Population in central Mexico, often called Sumichrast’s Scrub-Jay, is darker and more contrasty than a typical Woodhouse’s, and might be a separate species.
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